Globe chronometer



1937. G. w. HAZLETT GLOBE CHRONOMETER Filed April 28, 1937 3Sheets-Sheet 1 3 wua/Yvm Georg 1411170 1666 Nov. 16, 1937. w z -r2,099,518

GLOBE CHRONOMETER Filed April 28, 1937 3 Sheets-Sheet 2 Nov. 16, 1937. wHAZLETT 2,099,518

GLOBE CHRONOMETER Filed April 28, 1957 s Sheets-Sheet s Gwrge wua zeu/R0? rm Patented Nov. 16, 1937 UNITED STATES PATENT OFFICE GLOBECHBONOHETEB Application April 2:, 1m, Serial No. 189,603

llclaims.

My invention relates to globe chronometers. Important objects of theinvention are: to provide an accurate timepiece whereby the varioustimes throughout the globe may be readily ascertained; to provide meanswhereby the face of the globe is not marred or obstructed; to providemeans whereby there are no moving parts within the globe, leaving itssurface free for perfect and unobstructed illumination from theinterior;

to provide means whereby the globe may be readily removed from itssupport for access to the bulb therein; to provide means whereby theglobe may be turned for adJusting the same with respect to a givenpointer; to provide means whereby the traveling time indicating elementmay be manually adjusted with respect to the globe and pointer; toprovide means whereby the globe is supported upon its axis of rotationhaving the proper inclination; toprovide means for 2 driving the timeindicating element, which driving means is positioned exteriorly of theglobe for convenient access in adjustments; and to provide apparatus ofthe above mentioned character which is extremely simple in constructionand reliable in operation.

In the accompanying drawings forming a part of this application and inwhich like numerals are employed to designate like parts throughout thesame,

Figure 1 is a perspective view of a globe chronometer embodying myinvention,

Figure 2 is a side elevation of the same,

Figure 3 is a central vertical section through the same,

Figure 4 is an exploded perspective view of the various elements of thedevice,

Figure 5 is a fragmentary plan view of the globe and pointer, and

Figure 6 is a diagrammatic view of the circuit included in the device.

In the drawings, wherein for the purpose of illustration is shown apreferred embodiment of 'my invention, the numeral I. designates ahollow base, having a chamber II, the lower open end of which is coveredby a removable plate i2. Mounted within this chamber II is clock worksI3, preferably electrically operated. Current is supplied to thiselectrically operated clock works by wires l4 and I4, and a switch it,of

the oil and on type is connected in the circuit, and is opened and clowdby a rotary knob ll, arranged exteriorly of the base Ill. The wire it isconnected with a wire a, having the switch It connected therein, and thewire Ila is connected with one terminal of the electric bulb socket II,the other terminal of which is connected with a wire 2|, connected withthe wire it. A wire II is connected with the pole of a motor I! of theclock works and the opposite end of the wire it is connected with thewire 5- i. The opposite pole of this motor is connected with a wire 21',connected with wire ll. Arranged above and centrally of the top of thebase II is a curved bracket or support 20, which is rigidly attached tothe base by a screw 2i or 10 the like, arranged centrally of the top ofthe base. The socket I! is rigidly attached to the lower end portion ofthe curved bracket or support 20, and the wires a and 20' pass throughan' opening 22 in this bracket or support. The 1:; socket I8 iselongated, cylindrical, and its outer surface is preferably smooth. Thesocket I8 is inclined with respect to the perpendicular, correspondingto the inclination of the axis of the The numeral 23 designates a globe,having an accurate map of the world formed thereon embodying the variouscontinents, oceans, etc., and the meridian lines 24 which are designatedin the usual manner. This globe is preferably light 25 transmitting andmay be translucent or transparent. The globe is preferably provided atits north pole with a knob 25, for convenience of handling. Arrangedwithin the globe 23, at its south pole, is a cylindrical sleeve 20,rigidly attached thereto, and this sleeve is removably mounted upon thesocket II and is free to turn thereon. The downward movement of thesleeve 28 is limited by the base or projection 21 of the socket ii. Thesleeve 26 is also adapted to be 35 passed over an electric bulb 28,mounted within the socket II, with its terminals in contact with theterminals of the sockets, as is well known. The diameter of this bulbdoes not exceed the diameter of the socket ll, so that the sleeve may 40be passed over the bulb, as stated. The longitudinal axis of the socketII is in alignment with the north and south poles of the globe and thislongitudinal axis is inclined to coincide with the axis of rotation ofthe globe, which is inclined to 45 correspond to the actual inclinationof the axis of rotation of, the earth. Particular attention is called tothe fact that there are no operating or driving parts within the globe23, whereby the globe may be illuminated interiorly, in the uniso formand proper manner. The ready removal of the globe from the socket llrenders it convenient to have access to the bulb 20, to renew the same,when desired.

Preferably arranged at the equator of the globe it is arace band orstationary supporting element 29, which is preferably annular andslightly larger in diameter than the globe at the equator, so that thereis a space between the same. This race band has its plane parallel withthe plane of the globe at the equator, and the plane oi" the race band2d ls perpendicular to the central longitudinal axis of the socket it.race band has its upper surface grooved to term an annular recess tt,receiving an ular rotatable equatorial ring gear hi, or te. indicatingelement. This ring gear is provided with gear teeth ti upon its outerside or periphery and the ring gear is free to turn within the recesstit and is guided by the race hand. The interior diameter of the ringgear it is also slightly larger than the diameter of the globe at theequator, to provide a space between the same. The ring gear rests uponhorizontally rotating rollers dd, rotatably mounted upon pins til, fixedto the race band and arranged within the recess til. .ilny othersuitable form of anti-friction means may be employed for supportingthe'ring gear ti, if desired. at the high end of the race band "it is abracket die, rigidly secured thereto, having a horizontal arm til, whichoverhangs the ring gear ti. "this bracket carries'an upwardly pro-,iecting pointer M. a bracket th is arranged at the low portion of thering gear ti and has a horizontal lip tt overhanging the ring gear, andthe bracket db, curved support or bracket tilt, and race band iii areall rigidly connected by means oi screws d'i. These screws extendthrough openings tit and it and have screw threaded engagement withinopenings lit. The race band iii engages within a recess ti providing ashoulder it, engaging the bottom of the race hand. The brackets Etta andit are diametrically oppositely arranged and hold the ring gear againstupward displment.

The ring gear is therefore rotatably supported at the equator oi theglobe in a plane parallel with the plane ofthe equator and the plane ofthe ring gear is at a right angle to the central longitudinal axis oithe socket it. lit is thus seen that the globe may be turned withrelation to the race hand it and the ring gear may be turned withrelation to the race hand and also with relation to the globe. The ringgear or time indicating element is provided with two sets oi pins orpoints ltach set of pins or points carry numerals the running from i to12 inclusive and increasing in value in the same direction and the l ofone set of nerals being arranged neat to the "12 ot the other set. Oneset oi numerals is black to designate the P. M. time and the other setof numerals white to designate the A. ill. time. the l of the ll.numerah is arranged next to the i2 oi the P. M. numerals, and viceversa. The nerals in each set are oi course equi-distantly spaced anddesignate hours and they divide the ring gear into 2d hour spaces ofequal length. The spaces between each pair of numerals are furtherdivided by pins 36, designating time intervals of 15 minutes, each hourbeing divided into four it minute inmrvals, although other timeintervals may be used for each hour. The pointer t l is arrangedto coactwith the numerals the and points 36, as is obvious.

The numeral M designates a small pinion or gear, operating beneath thelip db and within recesses 45 and 46, Figure d, and this pinion is inpermanent mesh with the gear teeth lit. the

pinion or gear M; is rigidly mounted upon the notable upper end of anupwardly projecting inclined drive shaft til, which is parallel with thecentral longitudinal axis ofthe socket iii. The upper portion of thisdrive shaft is iournaled in a hearing tt formed in the upper end of thesupport 20.

the clock works, the shaft may be turned by cans of a wheel or knob hirigidly secured thereto, without driving the clock works. The ratio oithe gear it with respect to the ring gear di, and the speed oi rotationof the rotatable part tilt of the clock works are so adjusted that thegear M will turn. the ring gear ti for a complete rotation for each 2dhours.

".lhe operation of the apparatus is as follows.

if the apparatus is being used in New York city, the globe would heturned until the '75 W. meridian was near the pointer, since New Yorkcity has a longitude of 7d W. lihe correct time at New York being forexample 3:00 P. M., the

operator would turn the knob hi to bring the ring gear to such apositionthat the white 3 carried by the ring gear would be opposite the pointer,and as the clock works continue to operate, the ring gear would turnclockwise indicating the change in time in New York city. To ascertainthe time at any other place in the world, the longitude of such Place islocated and then the black or white number tile next to the meridianline which is adjacent to such ascertained place, will indicate the timeat such place. For instance, if it is 3:00 P. M. in New York city itwill be found to be about t:l5 P. M. at Paris, France, and about 62th A.M. at Sydney, Australia.

It is to be understood that the dorm oi my invention herewith shown anddescribed is to be taken as a preferred embodiment of the same and thevarious changes in the shape, size and arrangement of parts may beresorted to, without departing from the spirit of my invention or thescope of the subjoined claims.

Having thus described my invention, what i claim is: I

l. A globe chroncmeter comprising a support, a globe mounted upon thesupport, a race hand secured to the support and arranged ekteriorly ofthe globe to surround the same, a ring gear surrounding the globe andcarried by the race band, said ring gear having means to indicate time,and means arranged wholly exteriorly of the globe to drive the ringgear.

2. A globe chronometer comprising a support, a globe rotatably mountedupon the support, a race band secured to the support and arrangedeateriorly of the globe to surround the same, a ring gear surroundingthe globe and carried by the race band, said ring gear having means toindicate time, a. gear arranged ekteriorly oi the globe to drive thering gear, means to drive said gear, and a pointer for coaction with theglobe.

3. A globe ehronometer comprising a support, a socket mounted upon thesupport to receive an electric bulb, a race band secured to the support,a globe having a part removably mounted upon the socket with the globearranged within the race band so that the globe may be separated fromthe socket without disturbing the race band, a time indicating elementmounted upon the race hand to travel thereon. and means arrangedexteriorly of the globe to drive the time indicating element.

4. A globe chronometer comprising a support, a. socket mounted upon thesupport to receive an electric bulb, a light transmitting globe havinga.

' base, a support mounted upon the base, a socket mounted upon thesupport for receiving an electric bulb, a light transmitting globeremovably mounted upon the soclnet, a race band secured to the supportand surrounding the globe, time indicating means movably mounted uponthe race band, driving means arranged within the hollow base, drivingconnecting means extending between the driving means and the timeindicating means and arranged exteriorly oi the globe and being manuallyadjustable.

6. A globe chronometer comprising a support, a base, an inclined socketcarried by the support to receive an electric bulb, a light transmittingglobe removably mounted upon the socket, a race band secured to thesupport and having its plane arranged substantially at a right angle tothe longitudinal axis of the socket, a ring gear mounted upon the raceband and having means to indicate the time, a pointer carried by therace band, driving means carried by the base, and driving connectingmeans between the driving means and the ring gear and arrangedexteriorly of the globe.

7. A globe chronometer comprising a relatively stationary support, asocket mounted upon the support, a light transmitting globe providednear its lower pole with a bearing for insertion upon the socket, anelectric light bulb carried by the socket, a time indicating bandsurrounding the globe, and means separate and apart trom the socket andarranged wholly exteriorly oi the globe to turn the band.

8. A globe chronometer comprising a relatively stationary support, anupstanding element carried by the support, an electric light bulbmounted upon the element, a light transmitting globe provided near itslower pole with an opening for the passage of the element and the bulb,the element serving as the sole supporting means of the globe so thatits upper portion is uncovered, a time indicating band surrounding theglobe, and means separate and apart from the element and arrangedexteriorly of the globe to drive the band.

9. A globe chronometer comprising a globe having a sleeve at its lowerpole, a bulb socket upon which the sleeve is removably mounted, a bulbcarried by the socket, a support for the socket, a

time indicating element arranged to travel longitudinally of the equatorof the globe, and means arranged exteriorly oi the globe to operate thetime indicating element.

10. A globe chronometer comprising a light transmitting globe having asleeve at its lower pole, a bulb socket upon which the sleeve is ad-Justably' and removably mounted, an electric bulb carried by the socket,a support for the bulb socket, a time indicating element arrangedexteriorly of the globe to travel longitudinally of the equator of theglobe, and means to operate the time indicating element.

11. A globe chronometer comprising a light transmitting globe having anopening at its lower pole, an upstanding bracket arranged exteriorly oithe globe and extending through and confined within substantially 90 ofthe globe, a pivot element secured to the lower end 01 the bracket andextending into the opening at the lower pole of the globe, a guidearranged exteriorly oi the globe and extending longitudinally of theequator oi the globe, a time indicating element carried by the guide,and means to operate the time indicating element.

GEORGE W. HAZLE'I'I.

